Cleanup lots of stuff
- Moved monitoring, istio, cert-manager & ingress all to modules
- Dropped envsubst crap
- Removed unused package from blubber config
- Turned Issuer resources into ClusterIssuer so they work on all namespaces
This whole thing should be a no-op on deploy because I already moved the states to their new name. Only thing that will show on diff:
- Deletion/recreation of the Issuer resources as ClusterIssuers
- Values on ingress helm chart because the comment about envsubst was removed (no-op though)